Bose Professional
FreeSpace 3 Series II bass module
Loudspeakers

FreeSpace 3 Series II bass module

Designed to provide flush-mount bass augmentation for new and existing background music systems. Features one 5.25-inch (133 mm) woofer that delivers deep bass down to 40 Hz without audible distortion. For indoor applications only.

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  • Authorized productFull manufacturer warranty
  • Ships from A5 ITCrystal Lake, Illinois
  • Design supportSpecify the whole system

Features

  • Low-frequencyloudspeaker featuring one 5.25-inch (133 mm) woofer that delivers deep, non-localized bass support down to 40 Hz without audible distortion. For flush, ceiling, pendant and wall-mount applications

  • Speaker technologyfilters out audible distortion to deliver non-localized bass

  • Designedto work with the FreeSpace 3 flush and surface satellite speakers, or existing systems where additional bass reinforcement is desired

  • Module designallows parallel connection of multiple bass modules and can accommodate two or four FreeSpace 3 satellites per bass module

  • Plenum ratedfor use in air handling spaces (with optional plenum cover)

  • Selectable70/100V or low impedance with transformer tap adjustment under speaker grille

Applications

Designed for a wide range of applications, including:

  • Retail stores
  • Restaurants and bars
  • Lobbies and conference rooms

Specifications

21 specifications

PHYSICAL

Colors
Black, white
Enclosure Material
PC/ABS
Environmental
Indoor only
Grille
Expanded metal
Suspension/Mounting
(4) mounting arms, (3) suspension/safety cable attachment points
Product Dimensions (H×W×D)
15.4 in × 7.4 in (391 mm ×189 mm), loudspeaker diameter × depth / 14.3 in (362 mm), ceiling hole diameter
Net Weight
14.0 lb (6.4 kg)
Shipping Weight
20.0 lb (9.1 kg)

PERFORMANCE

Frequency Range (-10 dB)
40 Hz – 315 Hz
Coverage, Horizontal
Omnidirectional below 200 Hz
Calculated Maximum SPL @ 1 m
Per channel: 96 dB continuous, 102 dB peak / Mono: 102 dB continuous, 108 dB peak
Nominal Impedance
6 Ω mono direct (transformer bypassed)
Power Handling, long-term continuous
70/100 V: 200 W mono / Low impedance: 50 W per channel stereo or 100 W mono
Power Handling, Peak
70/100 V: 800 W peak mono / Low impedance: 200 W peak per channel stereo or 400 W peak mono
Recommended Signal Processing
Recommended
Sensitivity (SPL/1 W at 1 m)
Per channel: 76 dB / Mono: 79 dB
Transformer Taps, 100V
25 W, 50 W, 100 W, 200 W
Transformer Taps, 70V
25 W, 50 W, 100 W, 200 W
Coverage, Vertical
Omnidirectional below 200 Hz

TRANSDUCERS

Driver Protection
Recommended high-pass filter 40 Hz high-pass filter
Low-Frequency
5.25 in (133 mm) dual-voice-coil low-frequency driver

Downloads

6 documents

Technical Information

User Documentation

Mechanical Files

Compliance Documents

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